What could be disadvantages of using wavelet transform to for delay estimation in terms of SNR ratio, delay amount(smaller/larger) and duration of the measurement.
Sometimes it gives 0 delays if there is smaller delay.
Hope you can get idea by below links:
http://www.ncbi.nlm.nih.gov/pubmed/7503463
http://brainimaging.waisman.wisc.edu/~lutz/LeVanQuyen_et_all_JNM_2001.pdf
http://gs1.dlut.edu.cn/newVersion/Files/dsxx/1698.pdf
Why complicate when you can use cross correlation, which is simpler?
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